If you experience any technical difficulties with this video or would like to make an accessibility-related request, please send a message to [email protected]. Cost-benefit analysis requires the decision maker to estimate both the benefits and the costs of a regulation in monetary terms. However, in many cases, regulators refuse to report a monetized value for the benefits of a rule that they issue. In this presentation, Eric Posner asks: If they are not doing cost-benefit analysis, what are these agencies actually doing?